From dac1ba18c8e97e2a726a83e1cddc1c8f2a40468d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Fri, 1 Nov 2019 20:25:44 +0100
Subject: [PATCH] render: limit length of title in call to
 xdg_toplevel_set_title()

Trying to pass a too long title (not sure what "too long" is
though...) will trigger a call to abort() inside the wayland-client
library.
---
 render.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/render.c b/render.c
index b58eb7dc..2386e073 100644
--- a/render.c
+++ b/render.c
@@ -950,9 +950,21 @@ render_resize(struct terminal *term, int width, int height)
 }
 
 void
-render_set_title(struct terminal *term, const char *title)
+render_set_title(struct terminal *term, const char *_title)
 {
+    /* TODO: figure out what the limit actually is */
+    static const size_t max_len = 100;
+
+    const char *title = _title;
+    char *copy = NULL;
+
+    if (strlen(title) > max_len) {
+        copy = strndup(_title, max_len);
+        title = copy;
+    }
+
     xdg_toplevel_set_title(term->window->xdg_toplevel, title);
+    free(copy);
 }
 
 void